Braiding machine



GQ HORN.

BRAIDING MACHINE.

APPLICATION FILED Dr-:c.19. 1913'.

Patented Mar. 14, 1922.

4 SHEETS-SHEET l.

l f f .Illl IIIIHIIMM L G.. HORN. BRAIDING MACHINE. APPLICATION FILED DEC. 19| I9I3.

1,409,297, f Patented MaI-414,192.2;

` 4 sHEETs sHEET 2.

G. HORN.

BRAIDING MACHINE.

APPL'lcATloN FILED Dsc.19,`1913.

Patented Mar. 14, 1922.

4 SHEETSfSHEET 3.

G. HORN.

BRAIDING MACHINE. APPLunlmoN FILED Dsc-.19. ma.

d1,409,297. if@ 5 Patgnted Mar. 14, 1922.

4 SHEETS-SHEET 4.

`the cam groove that engages with the cam oi' an actuating member is on a radialline drawn from the pivot 'of the particular actu` ating member.. The ring portion of the middle rotor that takes the cam groove. may be made in the shape of a cylinder as shown.

Indentations v1S for the passage ofthe outer threads beneath the carriers are provided in the runway 9.- Suspended from the under side ofjthe rim ot' Vthe rotor 6 are the bobbin brackets 19 with the outer bobbins 20. On the periphery of the rotor are mounted the posts r21r which. support theV thread guiding levers or switches 22. The thread switches rock on )ivots 23 and are provided with pins 2a. nach pivot 23 has a small hook arranged on its Vinner end which guidesthe thread that passes from the bobbin 20 through a hole in the post 21.

Erected on the ground platel are pillars 25 that support the lixed peripheral camgroovering 26. A cam groove 2T is cut into this ring 26.v The inner surface of the ring 26 constitutes a section of a sphere, the object of this arrangement being to cause the cam groove to be directed at all points radially towards the center' of the imagined sphere, this centerv being, in the described machine, `the point of braiding M Figs. 1 and 2. The central lines of the axes or pivots 23 and pins. 24C valso intersect at the point M. The result of the radial directions of the switch pivots 23 and cams 2a, combined with the radial direction ofthe cam son with a lcam groove at all its points, is that every cam 24C not only sinks into the cam-grooveY to an equal depth throughoutthe whole oi its travel in the groove, but .is also always directed straight towards the point M, so that it neverl rocks over towards the one side of the groove or the other and jams. These results of they spherical surface for the camgroove are illustrated in compariroove 'on va fiat'surface in Fig. 6 parts A, ,C and l). Fig. 6 part A shows a cam-groove viewed from the point of braiding. The thread Switch is shown b v solid lines in a horizontal position and by broken lines in an upwardly slanting position and a downwardly slanting position. Part B shows a top' view and a cross sec! tion of a cam-groove'arranged according to the invention on a spherical surface. Parts C and D illustrate cam-grooves on "flat sur; Yfaces and from the cross sections of these parts of Fig. 6. ItV will be apparent that the cams assumev slanting positions in theirV cam grooves instead of Valways fitting squarely in the `groove as shown in part B of Fig. 6.

The outer thread is ledy Afrom the bobbin through ythe post 21 over the pivot 23 and thence over the end yof thethread switch to the point of braiding. As the switch always keeps at an even distance from the point of braiding in all positions, the length of the thread will also remain constant.

The machine operates as follows:

It will be assumed that the rotor 6 with the outer bobbins 20 revolves from left to right. The carrier propeller lfwill then turn towards the left and theV actuating members 14 will propel the carriers 10 with the bobbins 12 in the opposite-direction to thev space between two inner bobbins. The

threads move down into their lower positi ons in` the indentatlons 13 ot' the runway 9. lVhen a thread has reached the lower end ot an indentation 18 the next hobbin carrier During the passing of the car- I passes over it. riers over the outer threads each actuating member 14; is shifted by the co-operation of its pin or follower 16 with the cam-groove 17 on the inner surface of the rotor so that each end of the member let moves down beneath Vthe .lowest point ot' each indentation or thread which it passes. In Fig. 3 three consecutive positions I to-III are shown that an actuating member 14 assumes when passing an outer thread. In the first position'l aV carriertravelling in the direction of the arrow and propelled by the rear end of the actuating member .14C has passed over a thread in the indentation 18 up to its for- -ward slot 13 which is at that time out of en agement with the rontc'urved end of lll.- lpntPosition II the middle of the carrier. Il

thas reached the indentation-18 andboth ends ot the actuating member 14' are in gngagement with their slots. `ln position nlll'the rear end of 14; is'out of engagement with-'the rear slot and room is thus left Vfor the outerk beneath the threads z, andg, after havingV previously passed over the threads 7c and c'. The thread b lies above the threaded and 7L and, aswill be seen from the vlower position over the threads'h and g and so forth. It would also be found that 'each inner thread passes alternately over and under sets of two threads. Fig. t illustrates the kind of braid produced.

In the design described in the foregoing description a runway is provided for the carriers of the inner bobbins that is fast with the rotorthat carries the outer bobbins and consequently rotates at the same speed. Fig. 5 represents a modification in which the runway and the cani-groove for the actuating members of the inner bobbins are stationary. This construction requires the division of f the runway into sections 9au and 9b, these sections being supported alternately by the middle stationary hollow axis 2 of the machine with the middle support 6a and by theV outer suspended ring 6b. The middle support 6a is made ring-shaped beneath the run way so as to adapt it to the cam-groove 17. The outer threads are so guided that they pass over the runway sections 9a and beneath the suspended runway sections 9b. Spaces 18a are provided between the runway sections 9L and 9b so that the outer threads may sinuate above, between and under thecorresponding runway sections.

All the other parts have the same signs of reference as the corresponding parts in the Fig. 1 already described. It need only be mentioned that the hub 3 of the carrier propeller et revolves in the hollow axis 2 of the machine and that the inner bobbins 12 are mounted on the inner sides of the carriers 10'. The operation of both machines is similar, so that the operation of the modification need not be described. e

It may bementioned that the cam-groove which oscillates the actuating member 14 thatppropels the inner bobbins is shown in Fi 5 in two different shapes. In the right half of the machine, which is shown in secat the points where the outer threads pass over the inner bobbin carriers.

I claim: A i l. In a braiding machine, the combination with two sets of thread supplies revolving ,Y

in opposite directions, Vthe threads from the one set sinuating'through the threads of the other set, of switches to control the sinuating thread supplies, and a member having'a cam-groove on a concave spherical surface thereof for shifting the said switches, all point-s of the spherical surface being at an equal' distance lfrom the braiding point of the machine.

2. In a braiding machine, the combination with two sets o-f thread supplies revolving in opposite directions, the threads from the one set sinuating through the threads of the other set, of switches to control the sinuating thread supplies, and a separate cam ring eX- tending around the outsideof the rotorV and.

having a cam groove therein, and pins in the said groove for shifting said switches, said cam groove being so shaped as to always keep the Vmiddle line of the cam directed straight toward the braiding point of the 'Y machine.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

, GUIDO HORN. lVitnesses:

HENRY HAsrER, WOLDEMAR HAUPT. 

